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2,283
RESULTS

Media Type
1
collections
2,273
texts
4
audio
4
movies
1
data
Topics & Subjects
1,170
Abstracts
1,160
ERIC Archive
631
ABSTRACTS
432
Annotated Bibliographies
425
NASA Technical Reports Server (NTRS)
269
Educational Research
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Collection
1,160
Education Resources Information Center (ERIC) Archive
425
NASA Network Resource and Training Site
306
American Libraries
177
Defense Technical Information Archive
160
FEDLINK - United States Federal Collection
140
The National Agricultural Library
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Creator
1,160
eric
425
nasa technical reports server (ntrs)
181
defense technical information center
103
united states. office of experiment stations
82
chemical society (great britain)
10
massachusetts institute of technology
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Language
2,272
English
1
German
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